Gas-mixing device for internal-combustion engines



April 1 1924. 1,489,055

I F. B. BEHEE.

GAS MIXING DEVICE FOR INTERNAL COMBUSTION ENGINES Filed May 1921 2 Sheets-Sheet .1

INVENTOR M 2am.

ATTORNEY m. 6. am,

April 1, 1924.

F. B. BEHEE GAS MIXING DEVICE FOR INTERNAL COMBUSTION ENGINES Filed Mays. 1921 2 Sheets-Sheet 2 Illlll ATTORNEY Patented Apr. 1, 1924 arur OFFZCE,

FRANK B. BEEEE, O]? LEAVEN'WORTE, KANSAS.

Application filed May 6,

To aZZ whom it may concern:

Be it known that I, FRANK B. BEHEE, a citizen of the United States, residing at Leavenworth, in the county of Leavenworth and State of Kansas, have invented a new and useful Gas-Mixing Device for Internal- Combustion Engines, of which the follow ing is a specification.

My invention relates to gas mixing devices for internal combustion engines, and particularly to a device of this character whicn mixes air or atmosphere with the vapor gas passing from the carburetter into the intake manifold.

The object of the invention is to provide a cheap mixing device which may be disposed between the carburetter and the intake manifold and readily installed and having facility for mixing air or atmosphere with the drawn from the carburettor into the intake manifold and arranged to be operated simultaneously with the throttling of the thereby providing a highly combustible gas which, when fired in the cylinders of the en ine, develops greater power in the engine.

I attain this object and other advantages by means of the mechanism and combinagas, a

tion of parts illustrated in the accompany-' ing drawing in which Figure 1, is a front elevation of a carburetter to which my invention is applied, the intake manifold being disconnected to disclose the mixing device in operative position; Figure 2, is a top view of the same with the intake manlfold attached; Figure 3, is a top view of the some, and showing the means for operating the device simultaneously with the throttling of the gas; Figure a, is a top plan view of the band operating as avalve, a part of my invention; Figure 5, is a plan View of the strainer member; Figure 6, is a rear view of the device, ano showing the seat therein for the strainer, and Figure 7, is a longitudinal section through the device and associated parts, on the line7,7, in Figure 3.

Similar reference numerals refer to corresponding parts throughout the several views.

Y to the drawings-1, is a car bare-tor of conventional type and having the customary communication with the eX- hziust chamber of the motor and with the usual intake manifold 3, which is opened and closed by a butterfly type valve 4:, in

1921. Serial at. 467,269.

the outlet of the carburetter, the valve beburetter has a flange 7, which isarranged to receive a flange 8, 011 the terminal of the intake manifold, and the flanges are assembled in close relation by bolts 9, provided with nutslO, the flanges having bolt holes to receive the bolts. w

Between the flanges 7 and 8, is disposed my device 11, which comprisesa plate 12, having bolt holes 13, arranged to register with the bolt holes in the flanges 7 and 8, and together with the flanges to receive the bolts 9. Centrally of the plate 12, a hole 14-, is bored through the plate and around the hole 1 1, and on the front side of the plate is an annular flange 15, which projects from the plate a suitable distance to provide opportunity to bore at opposite sides thereof port holes 16, for the passage therethrough inward of normal atmosphere, the port holes being alternately spaced, that is to say, a hole first on one side and then a hole on the opposite side, then a hole spaced suitably from the first hole, followed by a hole in the opposite side and suitably spaced from the second hole and so on until the number of port holes required are provided. Slidably mounted on the annular flange 15, is a band 17, which is provided at opposite sideswith recessed portions 18, the band being held in place by virtue of steps 19, which are rigid wlth the outer side of the annular flange 15, the recesses being ofsuitable extent to entirely expose the port holes when the band is moved about the flange 15, and to engage the stops 19, in forward and rearward movement to limit the movement of the band. I

At the ends of the plate 12, on the front side thereof, are marginal flanges 20, which project from the plate to the plane of the terminal ed e of the annular flange 15 thus 1 the edges of the flanges mentioned form a plane bearing f r the flange 8, of the intake manifold, when the parts are opera-- tively assembled with my device. At the back of the plate 12, the hole 14:, is bored a little larger for a suitable distance inward to provide an annular shoulder 21, in which bore and on which shoulder is yieldingly mounted a strainer member 22, the frame 23 of which is adapted for frictionally holding itself in place. On the outer side of the band 17, is a boss 24;, which is provided with a rigid pin 25, on which pin is pivotally mounted a coupling member 26. A connecting rod or link 27, is pivotally mounted on the coupling member by a pivot 28, carried by the coupling member, the other end of the link is pivotally mounted on a coupling member 29, by a pivot 30, carried by said member. The couplin member 29, is pivotally mounted on the Tower side of an adjusting member 31, by a pivot 32, carried by the adjusting member. The adjusting member is, preferably, an angle piece which is suitably formed to receive the lever arm 5, the latter and the adjusting member being held substantially in parallel relation and thus detained by a pin 33, whereby when the lever arm is moved to open and close the butterfly 4;, the band 17, will be moved simultaneously to open and close the inlet ports 16.

The coupling members 26 and 29, are pivoted to turn horizontally and the link 27, is pivoted on the coupling members so that it will turn vertically, thereby, a flexible connection is provided between the band 17, and the lever arm 5, and which substantially functions as for a universal-jomt.

To applythe gas mixing device, the bolts 9, are removed from the flanges on the carburetter and intake manifold and the ,device inserted between them, the device bearing on the carburetter flange. The bolts 9 are then passed through the flangesand device and the nuts 10, screwed thereon to force the flange on the intake manifold upon the edges of the annular flange 15, and flanges 20. The coupling member 26, is then pivotally mounted on the pivot 25, and the coupling members 29, pivotally mounted on the pivot 32, the link 27 being pivotally connected between said coupling members by pivots 28 and 30. The adjusting member 31, is then rigidly attached on the crank arm 5, by fastener 33, and, thereafter, the device is operable by the crank arm, which arm is in turn con nected with and operable by the customary throttle lever, not shown, which is mounted on the steering wheel of the automobile, or any other suitable support.

The crank arm 5, turns the butterfly valve 4, to open and close communication between the carburetter and the intake manifold. In Figures 1 and 2, the crank arm is shown in normal closed position of the butterfly valve and, in Figures 3 and the back of 7 the crank arm is shown positioned at the full open position of the butterfly valve 4, as is particularly shown in Figure 7.

Starting from normally closed position of the butterfly valve l,-Wl1e11 the crank arm 5, is moved forward to open the valve the adjusting member 31, is carried thereby, and the latter is thereby forcing the band 17, to slide on the annular flange 15, thus the cut away portions of the annular flange open alternately, one after the other, the port holes 16, a port hole in then opening a port hole in the lower series of ports, and so on until all the ports, or as many of them as maybe desired, are opened. The closing of the port holes are in the reverse order. The adjusting member 31, may be adjusted on the crank arm 5, to suitably dispose the flexible connection between the crank arm and the band 17. Alternating the admission of air from one side of the mixing chamber in the annular flange 15, and at right angles to the flow of gas therethrough, eflects a maximum agitation of the gas which has been broken into streams by its passage through the strainer 22, and thereby a thorough mixture of the gas and air is accomplished, producing a highly combustible mixture. The opening and closing of the port holes in the manner described, and accomplished simultaneously with the opening of the butterfly valve 4, assures the mixing of proper quantities of gas and air simultaneously.

Having described my invention what I claim is- V I A device of the character described comprising an air inlet member adapted to be connected between the carburetter outlet and the engine induction pipe, said member having a cylindrical chamber adapted to communicate with the carburetter outlet and the induction pipe of the engine and provided with oppositely located diiferentiating series of ports, a sleeve r0- tatably mounted on the outer side of said chamber and adapted to hold the ports in the chamber normally closed and to alternate between the two series of ports to open and close the ports one at a time, and actuating means connected between said sleeve and the carburetter whereby the gas and the air may be simultaneously throttled.

FRANK B. BEHEE.

Witnesses:

GooDwIN CREAsoN, H. S. PEED.

that is to say; first opening the upper series of ports, 7 

